It’s been a while since I looked at one of the Megamorphs books, so here’s a little background. This is a spin-off of K.A. Applegate’s popular Animorphs series. There are four Megamorphs books and they’re characterised by being longer and containing more narrators than a typical Animorphs book. For today’s review, I’m going to be looking at the third of these – Elfangor’s Secret – which was first published in 1999. It should also be noted that this book is designed to be read after The Sickness (the 29th instalment of the main series).

When Elfangor tried to escape the war, he did so using the Time Matrix – the most powerful device in the universe. He knew that if the machine fell into the wrong hands it could be used to alter the history of the world, and so he hid it. Unfortunately, things don’t remain hidden forever. The device has fallen into the hands of Visser Four, and he intends to use it to ensure that Yeerks can easily dominate the Earth.

When the Drode is sent to request the Animorphs’ assistance, they know that something is wrong. The Crayak is their most powerful enemy – why ever would he need their help? Yet it quickly becomes clear that neither side wants to see the Yeerks with such power. The Crayak offers to give them the ability to pursue Visser Four across history, but he will only do so for a price. One of the Animorphs must die.

This is naturally not something that they want to agree to, yet they have no choice. They can’t value one of their lives over those of every human on the planet. Therefore, they begin to chase Visser Four in an attempt to stop him from changing history. However, they know that they must be careful. The Yeerk is not the only threat. Any wrong move that they make could also change the future for the worse…